How to Make Windows Media Player Your Default Player
Organizing your music, playlists, pictures and video file folders may already be a large enough task for you, so why bother with the hassle that comes from having multiple media players to play different file formats? Use this guide to set Windows Media Player as your default player and run all of your media through just one player.
Open Windows Media Player and click on the tab at the top of the player labeled "Tools." From the drop down menu that appears, click on "Options."
Click on the tap labeled "File Types," and under this tab click on the "Select All" button. This will select all of the media file types on your computer and set Windows Media Player to be the default player for these file types.
Scroll down the list of file types and uncheck any file types that you would prefer another program handled. When you are down, click on the "OK" button located at the bottom of the menu. Close Windows Media Player to allow the changes to take effect.